Allis-Chalmers D15 (LPG)

University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln

Tractor Test and Power Museum, The Lester F. Nebraska Tractor Tests Larsen

5-12-1961

Test 797: Allis-Chalmers D15 (LPG)

Nebraska Tractor Test Lab University of Nebraska-Lincoln, [email protected]

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Nebraska Tractor Test Lab, "Test 797: Allis-Chalmers D15 (LPG)" (1961). Nebraska Tractor Tests. 1209. https://digitalcommons.unl.edu/tractormuseumlit/1209

This Article is brought to you for free and open access by the Tractor Test and Power Museum, The Lester F. Larsen at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Nebraska Tractor Tests by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. NEBRASKA TRACTOR TEST 797 - ALLIS-CHALMERS D15 IPG

The University of Nebraska Agricultural Experiment Station

E. F. Frolik, Dean; A. W. Fpp, Acting Director, Lincoln, Nebraska

POWER TAKE-OFF PERFORMANCE Department of Agricultural Engineering Dates of Test: May 12 to May 26, 1961 Fuel Consumption Temp. Degrees F Manufacturer: ALLLS-CHALMERS MANUFACTUR• Barometer Crank Hp-hr ING COMPANY, MILWAUKEE, WISCONSIN Hp shaft Gal Lb per Cool• Air Air inches of speed per per ing wet dry mercury Manufacturer's Power Rating: Not Rated rpm hr hp-hr med bulb bulb FUEL, OIL and TIME Fuel commercial propane MAXIMUM POWER AND FUEL CONSUMPTION Specific gravity converted to 60°760° 0.5103 Weight Rated Engine Speed—Two Hours per gallon 4.25 lb Oil SAE lOW-30 API service class• 37.44 2000 3.992 0.453 9.38 172 60 75 29.177 ification MS, DM To motor 0.985 gal Drained from Standard Power Take-off Speed (540 rpm) —-On e Hour motor 0.724 gal Transmission lubricant SAE 80 EP Final drive lubricant SAE 20W engine oil Total time 30.83 1623 3.278 0.452 9.41 173 60 75 29.198 engine was operated 42 hours, VARYING POWER AND FUEL CONSUMPTION-—TWO HOURS 32.81 2063 3.565 0.462 9.20 165 60 76 ENGINE Make Allis-Chalmers Type 4 cylinder ver• 0.00 2175 1.264 155 60 75 tical Serial No 15-3065-T Crankshaft mounted length• wise Rated rpm 2000 Bore and stroke 3 '/z" x 3 % " 16.84 2113 2.478 0.625 6.80 160 59 74 Compression ratio 8.9 to 1 Displacement 149 cu in 4.059 0.459 9.26 172 60 75 37.59 2000 Carburetor size Vs " Ignition system battery Cranking 8.58 2154 1.835 0.909 4.68 158 60 75 system 12 volt electric Lubrication pressure Air cleaner 24.98 2094 3.035 0.516 8.23 162 60 75 oil washed wire mesh Oil filter replaceable pleated paper element Fuel filter replaceable paper element Av 20.13 2100 2.706 0.571 7.44 162 60 75 29.182 Muffler was used Cooling medium temperature con• DRAWBAR PERFORMANCE trol thermostat. CHASSIS Type standard Serial No Dl5-3623 Tread Slip Fuel Consumption Temperature Degrees F Draw• Speed Crank of Barometer width rear 54" to 80" front 51" to 78" Wheel base Hp bar miles shaft driv• Hp-hr Air Air inches of 87" Center of gravity (without operator or ballast, Cooling wet dry mercury pull per speed ers Gal Lb per per gal with minimum tread, with fuel tank filled and tractor lbs br rpm per br bp-br medium bulb bulb % serviced for operation) Horizontal distance forward VARYING DRAWBAR POWER AND FUEL CONSUMPTION WITH BALLAST from center-line of rear wheels 27%" Vertical dis• Maximum Available Power—Two Hours- -3rd Gear Low Range tance above roadway 28%" Horizontal distance from center of rear wheel tread 0" to the right/left Hy• 33.22 2942 4.23 2000 5.77 4.029 0.516 8.25 171 55 68 29.018 draulic control system direct engine drive Transmis• -3rd Gear Low Range 75% of Pull at Maximum Power—Ten Hours- sion selective gear fixed ratio plus operator controlled 7.81 163 52 63 29.102 26.77 2242' 4.48 2080 4.18 3.429 0.544 partial range power shifting Advertised speeds mph 50% of Pull at Maximum Power—Two Hours —3rd Gear Low Range (high range) first 2.7 second 4.7 third 6.1 fourth 18.52 1506 4.61 2115 2.97 2.824 0.648 6.56 170 53 63 29.030 15.3 reverse 4.7 (low range) first 1.9 second 3.3 MAXIMUM POWER WITH BALLAST third 4.3 fourth 10.9 reverse 3.3 Clutch single plate dry disc operated by foot pedal Power director clutch 26.36 5668 1.74 2052 14.81 Lst Gear Low Range.. l( 59 73 29.030 two multi-di.sc wet clutches operated by hand lever 32.34 4796 2.53 2000 10.77 1st Gear High Range. . 170 54 67 29.020 Brakes internal expanding shoe operated by two foot 33.34 3868 3.23 2001 8.07 2nd Gear Low Range. . 170 54 67 29.02(r pedals Steering power assisted Turning radius (on 33.93 3011 4.23 2002 6.05 3rd Gear Low Range. . 170 56 70 29.010 concrete surface with brake applied) right 111" left 111" (on concrete surface without brake) right 119" 34.09 2704 4.73 2001 5.32 2nd Gear High Range. . 165 56 70 29.010 left 119" Turning space diameter (on concrete surface 34.01 2084 6.12 1999 4.17 3rd Gear High Range. . 165 56 70 29.010 with brake applied) right 232" left 232" (on concrete 30.92 1046 11.09 2002 1.97 4th Gear Low Range. . 165 ^6 70 29.010 surface without brake) right 248" left 248" Belt MAXIMUM POWER WITHOUT BALLAST pulley 1678 rpm at 2000 engine rpm diam 9" face 6"/i(i" Belt speed 3956 fpm Power take-off 549 rpm 30.30 2837 4.01 2050 14.46 3rd Gear Low Range. . 175 53 69 29.090" at 1650 engine rpm. VARYING DRAWBAR PULL AND TRAVEL SPEED WITH BALLAST— 3rd Gear Low Range REPAIRS and ADJUSTMENTS No repairs or ad- Pounds pull 3000 3050 3000 2950 3150 3100 2900 mcnts. Horse|)ower 33.9 30.9 27.2 23.6 21.0 17.4 13.1 REMARKS All test results were determined from 3.0 2.5 2.1 1.7 Miles per hour 4.2 3.8 3.4 observed data obtained in accordance with the SAE and .4.SAE test code. Fourth gear high range was not run as it exceeded 15 mph.

We, the undersigned, certify that this is a true and With Ballast Without Ballast TIRES, BALLAST and WEIGHT correct report of official Tractor Test 797. Rear tires -No, size, ply & psi Two 14.9-26:6;14 Two 14.9-26;6;14 Ballast —Liquid 566 lb each None L. F. LARSEN —Cast iron 1000 lb each None Engineer-in-Charge Front tires —No, size, ply psi Two 6.00-16;6;28 Two 6.00-16;6;28 Ballast —Liquid 27 lb each None L. W. HURLRUT, Chairman —Cast iron 156 lb each None G. W. STEINBRUEGGE Height of drawbar 22 inches 23'/2 inches I. J. SULEK Static weight —Rear 5495 lb 2363 lb Board of Tractor —^Front 1865 lb 1498 lb Test Engineers Total weight with operator 7535 lb 4036 lb EXPLANATION OF TEST REPORT

Each tractor is a production model equipped for common turns with a minimum radius of 50 feet. The drawbar pull is usage. Power consuming accessories can be disconnected only set at 3 different levels as follows: (1) as near to the pull at when it is convenient for the operator to do so in practice. Ad• maximum power as possible and still have the tractor main• ditional weight can be added as ballast if the manufacturer tain the travel speed at maximum horsepower on the straight regularly supplies it for sale. The static tire loads and the in• sections of the test course; (2) 75% of the pull at maximum flation pressures must conform to recommendations in the Tire power; and (3) 50% of the pull at maximum power. Prior to Standards published by the Society of Automotive Engineers. 1958, fuel consumption data (10 hour test) were shown only for the pull obtained at maximum power for tractors having torque PREPARATION FOR PERFORMANCE RUNS converters and at 75% of the pull obtained at maximum power for gear-type tractors. The engine crankcase is drained and refilled with a meas• ured amount of new oil conforming to specifications in the Maximum Power with Ballast. Maximum power is measured operators manual. The fuel used and the maintenance opera• on straight level sections of the test course. Data are shown for tions must also conform to the published information delivered not more than 12 different gears or travel speeds. Some gears or with the tractor. The tractor is then limbered-up for 12 hours travel speeds may be omitted because of high slippage of the on drawbar work in accordance with the manufacturer's pub• traction members or because the travel speed may exceed the lished recommendations. The manufacturer's representative is safe-limit for the test course. The maximum safe speed for the present to make appropriate decisions regarding mechanical ad• Nebraska Test Course has been set at 15 miles per hour. The justments. slippage limits have been set at 15% and 7% for pneumatic The tractor is equipped with approximately the amount of tires and steel tracks or lugs, respectively. Higher slippage added ballast that is used during maximum drawbar tests. The gives widely varying results. tire tread-bar height must be at least 65% of new tread height Maximum Power Without Ballast. All added ballast is re• prior to the maximum power run. moved from the tractor. The maximum drawbar power of the tractor is determined by the same procedure used for getting BELT OR POWER TAKE-OFF PERFORMANCE maximum power with ballast. The gear (or travel speed) is the same as that used in the 10-hour test. Maximum Power and Fuel Consumption. The manufac• turer's representative makes carburetor, fuel pump, ignition and Varying Power and Travel Speed with Ballast. Travel speeds governor control settings which remain unchanged throughout corresponding to drawbar pulls beyond the maximum power all subsequent runs. The governor and the manually operated range are obtained to show the "lugging ability" of the tractor. governor control lever is set to provide the high-idle speed The run starts with the pull at maximum power; then addi• specified by the manufacturer for maximum power. Maximum tional drawbar pull is applied to cause decreasing speeds. The power is measured by connecting the belt pulley or the power run is ended by one of three conditions: (1) maximum pull take-off to a dynamometer. The dynamometer load is then is obtained, (2) the maximum slippage limit is reached, or (3) gradually increased until the engine is operating at the rated some other operating limit is reached. speed specified by the manufacturer for maximum power. The For additional information about the Nebraska Tractor corresponding fuel consumption is measured. Tests write to the Department of Agricultural Engineering, University of Nebraska, Lincoln, Nebraska. Varying Power and Fuel Consumption. Six different horse• power levels are used to show corresponding fuel consumption rates and how the governor causes the engine to react to the following changes in dynamometer load: 85% of the dyna• mometer torque at maximum power; minimum dynamometer torque, % the 85% torque; maximum power, 14 and % of the 85% torque. Since a tractor is generally subjected to vary• ing loads the average of the results in this test serve well for predicting the fuel consumption of a tractor in general usage.

DRAWBAR PERFORMANCE

All engine adjustments are the same as those used in the belt or power take-off tests. If the manufacturer specifies a dif• ferent rated crankshaft speed for drawbar operations, then the position of the manually operated governor control is changed to provide the high-idle speed specified by the manufacturer in the operating instructions.

Varying Power and Fuel Consumption With Ballast. The varying power runs are made to show the effect of speed-con• trol devices (engine governor, automatic transmissions, etc.) on horsepower, speed and fuel consumption. These runs are made around the entire test course which has two 180 degree Allis-Cbalmers D15 LPG